blankgrabber | Blank[.]exe

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General

Target

Blank.exe
Size

8.1MB
MD5

cfc23f0a53034e84030ea46fa9f4e3a1
SHA1

9eeba0886f7d90ac4aad4e4a1d4e29c551bfc5e6
SHA256

4d1ecd13d9f12170b18ee48d8097c83b9e4d7fdc04911058b1657e3767f3f77e
SHA512

47c6b97862e5cca262176a087846116beeb04e82483079ea1c9c722f0cb432e960cdd71cc5d1b7fa109e67327bb6235bdb0e3a7e20f856c3d5bf4d15fed9c250
SSDEEP

196608:dWBiEurErvI9pWjg/Qc+4o673pNrabebSEdyzWGPMYnN9sp:UNurEUWjZZ4dDLIeW7zWGPTNCp

Score

10^/10

blankgrabber

Malware Config

Signatures

A stealer written in Python and packaged with Pyinstaller 1 IoCs

resource	yara_rule
static1/unpack001/d�e��.pyc	blankgrabber

Blankgrabber family
blankgrabber

Files

Blank.exe
.exe windows:4 windows x64 arch:x64

758f5827dd042687cba02c91fcb1b038

Code Sign

48:fc:93:b4:60:55:94:8d:36:a7:c9:8a:89:d6:94:16
Certificate

Issuer

CN=AAA Certificate Services,O=Comodo CA Limited,L=Salford,ST=Greater Manchester,C=GB

Not Before

25-05-2021 00:00

Not After

31-12-2028 23:59

Subject

CN=Sectigo Public Code Signing Root R46,O=Sectigo Limited,C=GB

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

33:d7:08:a8:91:40:53:19:e2:a5:bb:d3:39:b9:ad:6e
Certificate

Issuer

CN=Sectigo Public Code Signing Root R46,O=Sectigo Limited,C=GB

Not Before

22-03-2021 00:00

Not After

21-03-2036 23:59

Subject

CN=Sectigo Public Code Signing CA EV R36,O=Sectigo Limited,C=GB

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

bf:b1:50:01:bb:f5:92:d4:96:2a:77:97:ea:73:6f:a3
Certificate

Issuer

CN=Sectigo Public Code Signing CA EV R36,O=Sectigo Limited,C=GB

Not Before

29-09-2021 00:00

Not After

28-09-2024 23:59

Subject

SERIALNUMBER=407950,CN=Akeo Consulting,O=Akeo Consulting,ST=Donegal,C=IE,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.3=#13024945

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

7b:05:b1:d4:49:68:51:44:f7:c9:89:d2:9c:19:9d:12
Certificate

Issuer

CN=VeriSign Universal Root Certification Authority,OU=VeriSign Trust Network+OU=(c) 2008 VeriSign\, Inc. - For authorized use only,O=VeriSign\, Inc.,C=US

Not Before

12-01-2016 00:00

Not After

11-01-2031 23:59

Subject

CN=Symantec SHA256 TimeStamping CA,OU=Symantec Trust Network,O=Symantec Corporation,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

7b:d4:e5:af:ba:cc:07:3f:a1:01:23:04:22:41:4d:12
Certificate

Issuer

CN=Symantec SHA256 TimeStamping CA,OU=Symantec Trust Network,O=Symantec Corporation,C=US

Not Before

23-12-2017 00:00

Not After

22-03-2029 23:59

Subject

CN=Symantec SHA256 TimeStamping Signer - G3,OU=Symantec Trust Network,O=Symantec Corporation,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

78:bf:0b:44:58:1e:bc:0b:f7:5f:a6:19:5c:ad:f7:db:f7:53:f3:67:f6:15:f4:10:56:2b:2d:03:23:a4:0f:b3
Signer

Actual PE Digest

78:bf:0b:44:58:1e:bc:0b:f7:5f:a6:19:5c:ad:f7:db:f7:53:f3:67:f6:15:f4:10:56:2b:2d:03:23:a4:0f:b3

Digest Algorithm

sha256

PE Digest Matches

false

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DEBUG_STRIPPED

Imports

advapi32

ConvertSidToStringSidW
ConvertStringSecurityDescriptorToSecurityDescriptorW
GetTokenInformation
OpenProcessToken

comctl32

LoadIconMetric

gdi32

CreateFontIndirectW
DeleteObject
SelectObject

kernel32

AreFileApisANSI
CloseHandle
CreateDirectoryW
CreateFileW
CreateProcessW
CreateSymbolicLinkW
DeleteCriticalSection
DeleteFileW
EnterCriticalSection
ExpandEnvironmentStringsW
FindClose
FindFirstFileExW
FindFirstFileW
FindNextFileW
FormatMessageW
FreeLibrary
GetCommandLineW
GetCurrentProcess
GetDriveTypeW
GetEnvironmentVariableW
GetExitCodeProcess
GetFinalPathNameByHandleW
GetLastError
GetModuleFileNameW
GetModuleHandleW
GetProcAddress
GetStartupInfoW
GetTempPathW
InitializeCriticalSection
IsDBCSLeadByteEx
K32EnumProcessModules
K32GetModuleFileNameExW
LeaveCriticalSection
LoadLibraryExW
LocalFree
MulDiv
MultiByteToWideChar
QueryPerformanceCounter
QueryPerformanceFrequency
RemoveDirectoryW
SetConsoleCtrlHandler
SetDllDirectoryW
SetUnhandledExceptionFilter
Sleep
TerminateProcess
TlsGetValue
VirtualProtect
VirtualQuery
WaitForSingleObject
WideCharToMultiByte
__C_specific_handler

msvcrt

fwprintf
___lc_codepage_func
___mb_cur_max_func
__argc
__iob_func
__set_app_type
__setusermatherr
__wargv
__wgetmainargs
__winitenv
_amsg_exit
_cexit
_commode
_errno
_filelengthi64
_fileno
_fmode
_get_osfhandle
_getpid
_initterm
_onexit
_snwprintf
_stricmp
_wputenv_s
_vsnwprintf
_wcmdln
_wcsdup
_wcserror
_wcsnicmp
_wfopen
_wfullpath
_wstat64
_wtempnam
abort
calloc
clearerr
exit
fclose
feof
ferror
fflush
fgetpos
fprintf
fputc
fputs
fputwc
fread
free
fsetpos
fwrite
iswctype
localeconv
malloc
mbstowcs
memcmp
memcpy
memset
realloc
setbuf
signal
strchr
strcmp
strcpy
strerror
strlen
strncat
strncmp
strtoul
vfprintf
wcscat
wcschr
wcscmp
wcslen
wcsncmp
_wcsdup
_strdup
_fileno

user32

CreateWindowExW
DefWindowProcW
DestroyIcon
DestroyWindow
DialogBoxIndirectParamW
DispatchMessageW
DrawTextW
EndDialog
GetClientRect
GetDC
GetDialogBaseUnits
GetMessageW
GetWindowLongPtrW
InvalidateRect
MessageBoxA
MessageBoxW
MoveWindow
MsgWaitForMultipleObjects
PeekMessageW
PostMessageW
RegisterClassW
ReleaseDC
SendMessageW
SetWindowLongPtrW
ShowWindow
ShutdownBlockReasonCreate
SystemParametersInfoW
TranslateMessage

Sections

.text
Size: 76KB - Virtual size: 76KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 256B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 28KB - Virtual size: 27KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.pdata
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.xdata
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 15KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 96B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 512B - Virtual size: 16B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 2KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 308B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
d�e��.pyc

Sharing

General

Malware Config

Signatures

Files

758f5827dd042687cba02c91fcb1b038

Code Sign

48:fc:93:b4:60:55:94:8d:36:a7:c9:8a:89:d6:94:16Certificate

Extended Key Usages

Key Usages

33:d7:08:a8:91:40:53:19:e2:a5:bb:d3:39:b9:ad:6eCertificate

Extended Key Usages

Key Usages

bf:b1:50:01:bb:f5:92:d4:96:2a:77:97:ea:73:6f:a3Certificate

Extended Key Usages

Key Usages

7b:05:b1:d4:49:68:51:44:f7:c9:89:d2:9c:19:9d:12Certificate

Extended Key Usages

Key Usages

7b:d4:e5:af:ba:cc:07:3f:a1:01:23:04:22:41:4d:12Certificate

Extended Key Usages

Key Usages

78:bf:0b:44:58:1e:bc:0b:f7:5f:a6:19:5c:ad:f7:db:f7:53:f3:67:f6:15:f4:10:56:2b:2d:03:23:a4:0f:b3Signer

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

comctl32

gdi32

kernel32

msvcrt

user32

Sections

.text Size: 76KB - Virtual size: 76KB

.data Size: 512B - Virtual size: 256B

.rdata Size: 28KB - Virtual size: 27KB

.pdata Size: 3KB - Virtual size: 3KB

.xdata Size: 3KB - Virtual size: 3KB

.bss Size: - Virtual size: 15KB

.idata Size: 6KB - Virtual size: 6KB

.CRT Size: 512B - Virtual size: 96B

.tls Size: 512B - Virtual size: 16B

.rsrc Size: 2KB - Virtual size: 2KB

.reloc Size: 512B - Virtual size: 308B

48:fc:93:b4:60:55:94:8d:36:a7:c9:8a:89:d6:94:16
Certificate

33:d7:08:a8:91:40:53:19:e2:a5:bb:d3:39:b9:ad:6e
Certificate

bf:b1:50:01:bb:f5:92:d4:96:2a:77:97:ea:73:6f:a3
Certificate

7b:05:b1:d4:49:68:51:44:f7:c9:89:d2:9c:19:9d:12
Certificate

7b:d4:e5:af:ba:cc:07:3f:a1:01:23:04:22:41:4d:12
Certificate

78:bf:0b:44:58:1e:bc:0b:f7:5f:a6:19:5c:ad:f7:db:f7:53:f3:67:f6:15:f4:10:56:2b:2d:03:23:a4:0f:b3
Signer

.text
Size: 76KB - Virtual size: 76KB

.data
Size: 512B - Virtual size: 256B

.rdata
Size: 28KB - Virtual size: 27KB

.pdata
Size: 3KB - Virtual size: 3KB

.xdata
Size: 3KB - Virtual size: 3KB

.bss
Size: - Virtual size: 15KB

.idata
Size: 6KB - Virtual size: 6KB

.CRT
Size: 512B - Virtual size: 96B

.tls
Size: 512B - Virtual size: 16B

.rsrc
Size: 2KB - Virtual size: 2KB

.reloc
Size: 512B - Virtual size: 308B